The subtle color of this brown glazed ware, called kaki(persimmon) by the Japanese, was derived by a very high content of iron which forms a brown skin on the surface that contrasts with a darker color beneath the surface. The fact that the bowl is glazed down to the base, with the foot and interior also glazed indicates the earlier phase of this ware's manufacture during the Northern Sung period (960-1127). The fine hard clay of the body suggests the Yao-chou kiln in Shansi province as the likely source of manufacture.




